For the topping, mix a lot of sugar with cinnamon and maybe 1/4 cup Jiffy mix, until the coloring looks right....not too cinnamony, not too white. Have lots of margarine in-waiting.

Preheat oven to 350 degrees.

Mix the top 4 ingredients together, it will look a little clumpy. Once that is all mixed, add in the blueberries. Pour this into a greased 9x13.

Take a large spoon and sprinkle the cinnamon and sugar mixture on top. Take a bunch of margarine into your hand and dot the top of the sugar/cinnamon with pats of the margarine. Take a knife and gently cut the cinn/sug/marg into the batter.

Put it in the oven, timed for 10 minutes.

After 10 minutes, take it out and sprinkle more cinnamon and sugar on top, adding the pats of marg too. Cut into it again, making sure you get that cinn/sug/marg goodness into the batter. (don't be conservative with the cinn/sug/marg)

Time for 10-15 minutes.

Take the baking dish out again and add more cinn/sug/marg to the top....again, cutting it in with a knife...even into the sides that are beginning to look done.

I usually start out with about 3-4 cups of the sug/cinn mixture, and there isn't any left at the end, so don't be skimpy.

You can repeat the additions of cinn/sug/marg one more time if you think it needs it. I always like to add a lot of marg all over the top, especially in the corners where it has the tendency to caramelize.

Once it's done, let it cool a bit....you can serve it warm if you'd like.

If you want to add a glaze....mix up a couple cups of confectionary sugar, 1 tsp vanilla, and add milk little by little until you get the consistency you want.

This is VERY good and won't last long in your house! You can replace the blueberries with sliced apples if you want....it comes out great!